Huawei MatePad T8 downgrade - Android Q&A, Help & Troubleshooting

Hi,
I have multiple MatePad T8s 10.1.0.128(C432E3R1P3) (it is original firmware installed in the device when I bought them). I have to downgrade them to 10.0.1.132(C432E3R1P3). Can you please help me with this operation?
This is what I already tried:
I downloaded KOB2-W09 10.0.1.132(C432) [KOB2-W09_hw_eu_R1] Huawei Official Stock Firmware [Stock, dload] [DG] from https://downloadgsm.com/index.php?a=downloads&b=file&id=30902.
I extracted it in my PC, dload folder contains:
- update_sd_base.zip
- KOB2-W09_hw_eu
-- update_sd_cust_KOB2-W09_hw_eu.zip
-- update_sd_preload_KOB2-W09_hw_eu_R1.zip
I extracted update_sd_base.zip (it contains UPDATE.APP and some other files) and copied it to dload folder in my tablet's internal storage.
Then I switched on MatePad T8 with power button and volume up button, selected Update Mode and Memory car/OTG update mode. After a while I got Software install failed message, the update package does not exist, please download the package again.
Thanks for any advice.

It is still actual and quite urgent. I can pay to anyone who will provide me clear instructions how to downgrade my tablet. I can pay via Paypal, SEPA or crypto...

HiSuite is the official tool that allows you to flash firmware, backup, and restore all your data of your Huawei devices on your PC. So, I think you may this free utility in order to downgrade firmware for your Huawei MatePad T8.

Sorry, I forgot to mention, that I have already tried HiSuite. Huawei customer support advised that I should see Switch to other version button in HiSuite (probably when I update the tablet to the latest version). Unfortunately, there is no Switch to other version button in HiSuite.

Related

Fastboot Mode and eRecovery working, no OS and no adb - PLEASE HELP - DESPAIR

Hello together,
today i wanted to rebrand my honor 9 from STF-L00 to STF-L09 and everything worked fine for me at the beginning. I unlock my bootloader and then i used the update.bat and follow the instructions. It installed TWRP. After a while nothing happened and i was still in the fastboot mode. In the fastboot mode i saw that my bootloader is locked again.
Now i have no OS and cannot used adb via fastboot, it does not recognize any device detected.
I downloaded MultiTool and it says i have installed STF-L09 now on my phone.
Info:
According to MultiTool is STF-L09 installed
Bootloader and FRP are locked
I just have Huawei eRecovery, but this is not working (Pacakge info fails)
I have no rom, because my phone is booting only in eRecovery
adb fastboot does not get recognized my phone.
Have all drivers needed on pc for adb to work.
HiSuite doesn't support recovery on this device.
Please help me, i don't know what i should do and i really start to despair. :crying::crying::crying:
Thank you very much
I have pretty much the exact same problem. The only difference is I was trying to rebrand from AL10 to L09. Got the same error in the same stage of rebranding, can access the exact same things as you, same goddamn FRP lock etc. Same all the way through except for starting from AL10 in stead of L00.
I have not found any free solution, the best I could find is DC Phoenix whose program claims that it "Can write firmware by fastboot with locked bootloader and locked FRP!" The thing is, it will cost 15 Euros to use this function in their program, and after paying etc. it is only available for 72 hours. At this moment I don't have access to a computer for the next 72 hours, so I have decided to wait a short while until I have a computer available for a 72-hour period. While I guess it would only take a short time, I realise now that nothing is ever as easy as it seems with Huawei and their absolute **** software... hence I want to wait for being able to use all 72 hours before paying.
This link has their guide to what needs to be done:
https://www.dc-unlocker.com/DC-Phoenix-flash-repair-tutorial
If you want to give it a try, it's the one possible solution I've found after MUCH googling. Though I remain hopeful that someone else on this forum might have a better (free) solution!
Hello Sanktgoran,
at first thank you very much for your help.
I have a question about the DC Unlocker. When i use this and write a new firmware by DC Unlocker, then i don't have to rebrand again?
Which rom do i should use to write on my phone?
Should i use the STF-AL00 rom or STF-L09 rom or it doens't matter?
Multitool says that i have STF-L09 on my phone, but my phone have no OS, because it doesn't boot.
Thanks
I'm not sure actually which one to use. I think you should go with the L09, since that is what the phone "thinks" it is at the moment. If it works to instll the L09 Firmware via DC unlocker, I think that would be the rebranding done as well. The way I understand this situation we are both in, our phones are rebranded to L09, just the actual L09 OS isn't really installed properly, and the FRP lock prevents us from unlocking bootloader, which in turn prevents us from completing the installation of L09. So by using the DC Unlocker to bypass the locks and installing the firmware, the process should then be complete.
I'm not sure about this though, it's just how i think it is. It might be that using DC will install the firmware stably and all is well, and it might be that it will install some of it and then the phone can at least boot into an incomplete OS where we could disable the FRP and bootloader locks, and thus be able to use the Update function in the HWOTA script to get things finished. Either way, I'm 99% sure that using the DC Unlocker will get us further along the path to a european Honor 9 than we are at this stage. I'm going to attempt it later today or perhaps tomorrow I think. After all, 15 euros is a small amount to spend compared to the cost of the actual phone...
Did you also copy an OEMinfo file for L09 into your adb/fastboot folder and run this command before using the HWOTA script?
ADB push oeminfo /tmp/oeminfo
ADB shell "dd if=/tmp/oeminfo of=/dev/block/platform/hi_mci.0/by-name/oeminfo"
I did, I'm not 100% sure what it does/is supposed to do, but I think it has made it so that the phone thinks it's done and rebranded, and tries to boot into L09, but since the L09 installation wasn't completed in the HWOTA script, it can't boot because firmware stuff is missing. That has me thinking that it's the L09 and not AL00 which you should use with DC Unlocker.
Did you check https://forum.xda-developers.com/honor-9/help/soft-bricked-honor-9-trying-to-root-t3737967 ?
Finally, it worked for me everything fine.
Here is one tip from me:
I downloaded at first the rom from a website and started to flash, but it failed.
After a long time of searching and asking, i got help.
You have to download directly from the DC Phoenix the rom (with the custominization file) and flash.
When you don't know how, just post here and i will write a short guide.
Thanks for helping. :good:
That's great, glad things worked out for you! Was it the full firmware file you downloaded from DC Phoenix, the ~4 gigabyte update.app file? Or the three .zip files, update.zip, update_data_full_public.zip and update_full_stf-L09_hw_eu? Do you download it from their website or through the DC Unlocker program? How big was the entire download? I'm on a limited monthly data kind of thing, just curious how big the download is.
Sanktgoran said:
That's great, glad things worked out for you! Was it the full firmware file you downloaded from DC Phoenix, the ~4 gigabyte update.app file? Or the three .zip files, update.zip, update_data_full_public.zip and update_full_stf-L09_hw_eu? Do you download it from their website or through the DC Unlocker program? How big was the entire download? I'm on a limited monthly data kind of thing, just curious how big the download is.
Click to expand...
Click to collapse
I use the download function from DC Phoenix.
When you open DC Phoenix, just click "Download Files" and a website will open, where you can search for the rom.
Search for "STF-L09" and you will get all roms for the STF-L09. I prefer to use this rom:
Stanford-L09_C432B130_Firmware_Belgium_Germany_France_Netherlands_Portugal_Switzerland_Spain_Italy_Aus
And for every rom you should download the customization file. They are directly together:
Stanford-L09_C432B130_update_data_customization_hw_eu.APP
You have to download both .APP files and the both files are in total almost 3,2 GB.
You open DC Phoenix and open the files there.
The Firmware you open in "Update File"
The customization file you open in "Customization File (optional)"
You connect your phone via fastboot and then you can start to update.
I don't know from which country you are, so i don't know which version of rom do you need.
When you download the rom which i downloaded before, you have just the B130 Version. But theres is already B182 existing. You can download the new rom via your phone in the settings.
Here is also the same guide from DC Unlocker (except of the part how you can download the rom).
https://www.dc-unlocker.com/huawei-phone-flashing-in-fastboot
Somehow its possible to flash firmware in dc Phoenix and having a locked Bootloader.
Shouldnt it be possible to use config.txt and flash twrp as recovery and then flash ur full stock?
Im asking cause i m not able to unlock the bootloader. The V+ Button is broke ( Mainboard related) and i cant agree to unlock after entering my code.

I need help!

Hello.
Some time ago I assumed a topic about the brick of my phone, Mate 10 Lite, I managed to bring it to life through the dc_phoenix program. The only version of the system they had was EMUI 5.1.
I'd like to have 8.0.0 to install LineageOS. But I do not have the code for the bootloader, dc_unlocker and HCU shows that it does not detect the phone. HWOTA needs this code to update. Is it possible to get this code somehow differently? Thanks for the help.
bielawnyf said:
Hello.
Some time ago I assumed a topic about the brick of my phone, Mate 10 Lite, I managed to bring it to life through the dc_phoenix program. The only version of the system they had was EMUI 5.1.
I'd like to have 8.0.0 to install LineageOS. But I do not have the code for the bootloader, dc_unlocker and HCU shows that it does not detect the phone. HWOTA needs this code to update. Is it possible to get this code somehow differently? Thanks for the help.
Click to expand...
Click to collapse
Are you sure you enabled Manufacture mode?
Also, phone needs to be booted, not in fastboot
Edit; you might have to install drivers for it, they have a button in HCU/DC named Support or something, that will open a website with drivers and such. I can't remember exactly which one I used because there was 10 or so to choose from. I think it was the most recent anyway. After you have got unlock code you'll have to uninstall driver, it breaks MTP support.
Edit 2: it's named Huawei_Android_phone_drivers_2.zip and location is Other downloads / Drivers / Huawei / Phones
But you need to open Support Area link from DC/HCU, it won't let you download if you're not logged in using the program

Ane-lx2 software update failed

Hello. I am Trying Flash New Firmware On My Ane-lx2 P20 Lite But It Says software update failed . Please Help.
Download the Full-OTA
there are a lot methods, with will not work for you, and there are some methods, what will work.
First, type down, what are you doing step by step when try to "flash" new firmware.
second, type down what are your model (like mine, ANE-LX1C432 (but as i got dual sim its actualy is L21) so at the end i got ANE-L21C432B126 (i have not updated to latest b162)
only maybe then we will be able to help you, if you type methods you did, othervise, how we can help if we dont know what you do?
Arnys said:
there are a lot methods, with will not work for you, and there are some methods, what will work.
First, type down, what are you doing step by step when try to "flash" new firmware.
second, type down what are your model (like mine, ANE-LX1C432 (but as i got dual sim its actualy is L21) so at the end i got ANE-L21C432B126 (i have not updated to latest b162)
only maybe then we will be able to help you, if you type methods you did, othervise, how we can help if we dont know what you do?
Click to expand...
Click to collapse
I Sent My Device To Service And They Installed IMEI Repair Firmware.
It has System 8.0.0.046(070F) build number. When I Bought It It Has ANE-LX2C636.
I Did DLOAD method.
I Copied update.app file in dload folder
sleexc said:
I Did DLOAD method.
I Copied update.app file in dload folder
Click to expand...
Click to collapse
for ANE-LX2C636 right now have not any files for dload method, it will not work (that firmware you download using huawei firmware finder inst for dload, for dload need specific package to work)
You can use Huawei eRecovery (to repair your device from brick, from broken build number etc. All data will be deleted, save it before, if can)
then are harder methods with bootloader unlock etc, read here: https://forum.xda-developers.com/hu...om-official-emui-8-0-huawei-p20-lite-t3773999
But remember, you need to use right build numbers for device, to be succes.
about "System 8.0.0.046(070F)" you crosflashed wrong build number, and, there shuldnt be any problems with IMEI, didnt get that part " Service And They Installed IMEI Repair Firmware", i guess they just used "Huawei eRecovery" what is simple to do, read about it in given link (eRecovery works for all phones, atlest, shuld to work if phone are not hard bricked)
to enter in eRecovery, disconect usb if conected, turn off phone, press wolume down and power on phone, keep presing wolume down, till its boots in eRecovery! or can do as in this video: https://www.youtube.com/watch?v=wv1huoy6biM
Arnys said:
for ANE-LX2C636 right now have not any files for dload method, it will not work (that firmware you download using huawei firmware finder inst for dload, for dload need specific package to work)
You can use Huawei eRecovery (to repair your device from brick, from broken build number etc. All data will be deleted, save it before, if can)
then are harder methods with bootloader unlock etc, read here: https://forum.xda-developers.com/hu...om-official-emui-8-0-huawei-p20-lite-t3773999
But remember, you need to use right build numbers for device, to be succes.
about "System 8.0.0.046(070F)" you crosflashed wrong build number, and, there shuldnt be any problems with IMEI, didnt get that part " Service And They Installed IMEI Repair Firmware", i guess they just used "Huawei eRecovery" what is simple to do, read about it in given link (eRecovery works for all phones, atlest, shuld to work if phone are not hard bricked)
to enter in eRecovery, disconect usb if conected, turn off phone, press wolume down and power on phone, keep presing wolume down, till its boots in eRecovery! or can do as in this video: https://www.youtube.com/watch?v=wv1huoy6biM
Click to expand...
Click to collapse
Thanks For Your Help.
Arnys said:
for ANE-LX2C636 right now have not any files for dload method, it will not work (that firmware you download using huawei firmware finder inst for dload, for dload need specific package to work)
You can use Huawei eRecovery (to repair your device from brick, from broken build number etc. All data will be deleted, save it before, if can)
then are harder methods with bootloader unlock etc, read here: https://forum.xda-developers.com/hu...om-official-emui-8-0-huawei-p20-lite-t3773999
But remember, you need to use right build numbers for device, to be succes.
about "System 8.0.0.046(070F)" you crosflashed wrong build number, and, there shuldnt be any problems with IMEI, didnt get that part " Service And They Installed IMEI Repair Firmware", i guess they just used "Huawei eRecovery" what is simple to do, read about it in given link (eRecovery works for all phones, atlest, shuld to work if phone are not hard bricked)
to enter in eRecovery, disconect usb if conected, turn off phone, press wolume down and power on phone, keep presing wolume down, till its boots in eRecovery! or can do as in this video: https://www.youtube.com/watch?v=wv1huoy6biM
Click to expand...
Click to collapse
It says in erecovery method "getting package info failed" eror.
sleexc said:
It says in erecovery method "getting package info failed" eror.
Click to expand...
Click to collapse
conected with wifi succesfully?
sorry, cant help more, dont want to suggest to unlock bootloader and use twrp, thats can brick phone way to hard!
ANE-LX2C636 OEMINFO is available for download?
ANE-LX2C636 is available for download?
ANE-LX2C636 is available for download?

Struggling to downgrade... -Help needed please

I'm trying to downgrade from 9.1 to any version that allows a bootloader unlock..
I've got a (P20 Lite) (64gb);
ANE-LX1 build 9.1.0.231 (C782E5R1P7)
EMUI 9.1.0
I believe that the C782 refers to the fact it's a UK version and ProjectMenu verifies this:
Vendor: o2
Country: uk
I tried downgrading via HiSuite, except that it gives me no options to downgrade and simply states that I'm up to date.
I also tried putting various firmwares into a dload folder and install via the ProjectMenu sdcard update
as well as a forced update (holding +&- and power whilst booting).
Both methods failed....
I've only used firmwares with 782 in them i.e
Huawei P20 Lite ANE Anne-L21 8.0.0.143(C782) Firmware Android 8.0.0 EMUI 8.0.0 05015EHQ androidhost.ru
or
Huawei P20 Lite ANE-LX1 ANE-L21 Anne-L21 8.0.0.150(C782) Firmware 8.0.0 r1 EMUI8.0 05015EHQ androidhost.ru
I noticed the firmwares were (vendor) hw and (country) eu, maybe this is why the updates are failing?...
I believe there is a way to change the vendor & country to match on the phone to match the firmware I want to install, but I couldn't manage that either...
What am I doing wrong?
Can somebody please verify that I am (at least) using the right firmware(s) or that I could try other firmwares?
Any help/guides greatly appreciated
Thanks
cant help much, but, you can try region change thing from dc unlocker region vendor cange info
here are first site i find at dc unlocker repair info
have not tried with p20 lite, but used with p9 and all worked, ofcorse, there can be driver problems if use windows 10, so, turn off driver signature before instal some drivers related!
Arnys said:
cant help much, but, you can try region change thing from dc unlocker region vendor cange info
here are first site i find at dc unlocker repair info
have not tried with p20 lite, but used with p9 and all worked, ofcorse, there can be driver problems if use windows 10, so, turn off driver signature before instal some drivers related!
Click to expand...
Click to collapse
Thanks for tho reply and the links & tips, I 'll have a look through them.
I'm pretty sure the drivers are installed correctly as I can communicate over ADB & fastboot. I'll double-check anyway

Honor 9X : Softbrick... How to restore?? HELP!

Hello guys!
I need your help to solve a difficult problem.
In August I bought the Honor 9X STK-LX1 (431) from China.
The device came with Android 9, firmware 9.1.0.334 and security April.The device booted every time with the Honor logo screen and worked normally.
After a few days, I tried to upgrade the software manually via microsd card, using the dload method. I got a softbrick. The device was started, displayed a Huawei logo screen (not Honor logo) and stopped there. Again and again.
I tried many roms for Honor 9X STK-LX1 (C431) but none worked. Hisuite did not recognize the device, adb-fastboot did the same. I also tried eRecovery, it connected to wifi and then it showed "Get package info failed".
After many attempts, now the device is functional, without a keybord installed, but it isn’t a Honor 9X-STK-LX1.
Here are some screenshoots:
I don't know what to do, to restore my phone with the correct firmware....
So we fixed your device.
Honor9x STK has many hardware variants.
It seems yours was STK-L21A hardware variant and was branded Honor STK-L21HN C431 hw/eea.
Problems we got were:
- For your cust region and hardware variant, there is no honor STK-L21HN Emui10 dload available yet, only Huawei STK-L21.
- latest approved LGRP4 B199 online package seems corrupted (CRC). (We did not tested with previous LGRP4 builds)
- LGRP2 online packages are intended for STK-L21A OVS branded Huawei and not Honor.
So, in the end, rebranding your device from STK-L21HN to STK-L21 just did the trick to finally fix your device.
I had to use paying remote softwares to rebrand you and force flash a correct firmware.
With the help of @oslo83, we managed to make the device functional.
Now it works like a charm.
It was not easy at all and oslo83 tried
very much.
I want to thank him for his interest and help.
MOD ACTION:
Thread closed as duplicate of https://forum.xda-developers.com/honor-9x/help/honor-9x-error-preas-xxx-hwproduct-t4178769

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